11402988 has 24 divisors (see below), whose sum is σ = 28172592. Its totient is φ = 3577344.

The previous prime is 11402977. The next prime is 11403013. The reversal of 11402988 is 88920411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27745 + ... + 28152.

It is an arithmetic number, because the mean of its divisors is an integer number (1173858).

Almost surely, 2^11402988 is an apocalyptic number.

It is an amenable number.

11402988 is an abundant number, since it is smaller than the sum of its proper divisors (16769604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11402988 is a wasteful number, since it uses less digits than its factorization.

11402988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55921 (or 55919 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 11402988 is about 3376.8310588479. The cubic root of 11402988 is about 225.0813730364.

The spelling of 11402988 in words is "eleven million, four hundred two thousand, nine hundred eighty-eight".